baber/WOPTO huggingface dataset:
Patent GB-565773-A (GB)
Title: Improvements in manufacture of fatty acids and their derivatives by fermentation
IPC: C12P33/00
Filed: 1942-05-20
Abstract: Waste cellulose materials such as sawdust and flour offals are hydrolysed and the resulting mass is fermented, without separation of insoluble matter or addition of chemical nutrients, by means of the cultures employed in the process of Specification 565,772, obtained by growing together (a) mixed bacteria obtained from soil or the intestinal canal of herbivorous animals without any separation or selective cultivation, and (b) a pure culture chosen according to the products desired from cultures of lactic, butyric, pseudo-lactic, cellulosolytic or pectinolytic bacteria. After fermentation, the insoluble matter is removed and the clear liquor evaporated and heated in a furnace to yield ketones.  In the Figure, cellulose waste is hydrolysed in vessel 1, steam being admitted to drive off furfural, methanol, acetone, formic acid and acetic acid, and the <PICT:0565773/IV/1> resulting mass is passed to vessel 4 in which it is neutralized with chalk.  The liquor is fermented in tanks 6 and clarified in tank 7 by adding milk of lime.  After filtering, the liquor passes from storage tank 10 to evaporators 11, syrupy calcium butyrate being collected in tank 12.  Evaporation is concluded in evaporator 13, the solid product is deposited in vessel 14 and the ketone is obtained by decomposition of the butyrate in furnace 15. Alternatively, the calcium butyrate solution may be decomposed by sulphuric acid and the butyric acid distilled over a metal oxide catalyst to give the ketone.
Patent GB-471551-A (GB)
Title: Improvements in or relating to the manufacture of electric incandescent lamps
IPC: H01K1/18
Filed: 1936-03-06
Abstract: 471,551. Supports for electric incandescent lamp filaments. GENERAL ELECTRIC CO., Ltd., DUDDING, B. P., and LEEDS, R. E. March 6, 1936, No. 6847. [Class 39 (ii)] The radial supporting- wires 4 for the coiled-coil filament of an electric incandescent lamp are provided at their outer ends with filament - receiving loops 7 which are elongated in that direction in which the filament will tend to move relatively to the supports in virtue of its contraction on ageing, but fitting the filament comparatively closely perpendicular to that direction. In the example, the original position of the filament 1 is indicated by full lines, and its position after ageing by broken lines. The length of the loops in the elongated direction is preferably chosen so that, when the change of length is completed, the filament fits closely into the end of the loop which it approaches during the change.
Patent GB-915133-A (GB)
Title: Improvements in or relating to demountable containers
IPC: E02D29/02
Filed: 1960-02-26
Abstract: 915,133. Storage containers. DURELL, R. B. March 6, 1961 [Feb. 26, 1960], No. 6907/60. Class 20 (1). [Also in Group I] Adjacent panels forming an enclosure intended to confine liquid on granular material are joined end-to-end by members passing through over-lapping pairs of endwise extending tongues. The panels are formed from wooden battens 2 having facing sheets 3, 4 of plywood or hardboard. The ends 6 of the battens projecting beyond the sheets 3, 4 are arranged to lie between the sheets of an adjacent panel so that the edges of the sheets abut. Steel tubes 7 are passed through aligned holes in the ends 6 and the joins thus formed along each side wall are buttressed by triangular wooden framed members (Fig. 4 (not shown). The buttress members are joined by steel strips lying on the ground. In a collapsible swimming pool, a plastic liner is provided.
Patent GB-1304896-A (GB)
IPC: F16K17/08
Filed: 1970-02-13
Abstract: 1304896 Valves CESSNA AIRCRAFT CO 13 Feb 1970 [17 Feb 1969] 6945/70 Heading F2V A fluid relief valve comprises a body 53 having an inlet 65, outlet 59 and a communicating passage 70 therebetween; a valve member 71 movably positioned in the passage; a valve seat 66 having an annular terminal edge engaging the valve member 71 defining inlet and outlet areas of the member respectively exposed to inlet and outlet fluid pressures; resilient biasing means 73 acting on the valve member 71; the valve member 71 having a surface configuration which co-operates with the valve seat 66 whereby the valve member opens in response to a predetermined inlet pressure and the inlet area enlarges in proportion to the increasing closing force exerted by the means 73 as the member 71 moves away from the seat 66. Above the predetermined pressure in chamber 57, fluid moves the valve member 71 to the right (Fig. 6, not shown) causing the inlet fluid to act over a larger area of valve member. If the pressure in chamber 57 should fall below a predetermined value, pressure of fluid from the outlet chamber 56 moves the member 66 to the left to allow a reverse flow of fluid. Chamber 57 is in communication with a chamber 63 via a slot 64. In another embodiment (Fig. 1, not shown), fluid from a high pressure chamber (13) acts on a valve member (25) and on a seat (26) so that above a predetermined inlet pressure the seat and valve member initially move together. When the flange (40) of the seat contacts the body, the valve member continues to open so that the area exposed to the inlet fluid increases in proportion to the closing force of the spring (24). The low pressure chamber (14) is in communication with a chamber (32) via apertures 37.
Patent GB-645182-A (GB)
Title: Improvements in and relating to stageless speed regulation of motors with the aid ofelectric frequency changers
IPC: H02P27/04
Filed: 1946-03-06
Abstract: 645,182. Automatic speed-control systems. AKT.-GES. BROWN, BOVERI, & CIE. March 6, 1946, No. 7023. Convention date, March 6, 1945. [Class 38 (iv)] The speed of an electric motor a driving a pump, machine-tool, rolling-mill, &c. is maintained constant over an extensive range of speeds by a frequency changer f supplied with two independent control frequencies, one of which is determined by the angular velocity of the motor while the other, derived from a small generator k or other source, is kept constant, and the sum of the two frequencies derived from the frequency changer f is supplied as a con. trolling frequency to a regulator g associated with an adjustable oscillatory circuit whereby a rolling-sector type regulating resistance x is adjusted to counteract any deviation of the speed of motor a from its required value. The example shows a D.C. motor a connected in a Ward-Leonard system, with its shaft coupled to the rotor of a frequency changer f comprising an asynchronous generator with a 3-phase stator winding energized at a constant frequency, and rotor slip-rings connected to the exciting coils y, z of a Ferraris motor controlling the field rheostat i<SP>1</SP> of the D.C. generator c. The coils z are variably inductive and coils y are capacitative, providing an oscillatory circuit which, at resonance frequency, produces no response in the regulator. The angular velocity N0 of the motor a is then equal to N2 - N1, where N1 is the constant frequency applied to the stator of the frequency changer f by a small synchronous generator k driven by a D.C. motor m. The value of N1 is adjustable by varying the speed of motor m by a field circuit rheostat controlled by a regulator p similar to the regulator g. Alternatively, a less accurate control may be obtained by energizing the stator of the frequency changer directly over lines s connected to the 3-phase supply e for the motor d driving the D.C. generator c. Variation of the speed of the motor a may be effected by adjustment of the choke q. The controlled resonance circuit of the regulator g may comprise grid-controlled discharge tubes, and may be single-phase operated. The Specification as open to inspection under Sect. 91 refers to the use of a stationary frequency changer such as an electronic mixing tube, or modulators, in place of the rotary frequency changer f, and also describes a modification, Fig. 1 (Cancelled), showing the control system applied to the field of a motor which has its armature connected to D.C. supply lines and drives the rotor of a frequency changer, the stator of which is connected to both a synchronous generator and an adjustable oscillatory circuit controlling a Feraris motor for regulating the field rheostat of a D.C. motor driving the synchronous generator. This subject-matter does not appear in the Specification as accepted.
Patent GB-1409366-A (GB)
Title: Apparatus for working highly viscous and like material
IPC: B29C48/693
Filed: 1973-02-13
Abstract: 1409366 Extruder breaker plate GOODYEAR TIRE & RUBBER CO 13 Feb 1973 [15 March 1972] 7061/73 Heading B5A [Also in Division B1] An extruder for working material (e.g. plastics, rubbers and waxes) comprises strainer 20 comprising a breaker plate 22 having passages 60 and a smooth surface curved convexly in a direction opposite to the direction of flow of material through barrel 12, and optionally one or more straining elements 41 (e.g. perforated or wire mesh elements), positioned between the barrel 12 containing screw 14 (or ram) and head 24. The curved surface may be in the form of part-sphere, -paraboloid or -ellipsoid.
Patent GB-333195-A (GB)
Title: Pit prop
IPC: E21D15/10
Filed: 1929-03-05
Abstract: 333,195. Clayton, G. March 5, 1929. Mine props.-A telescopic prop comprises a tube or section-bar and a head, with interfitting elements on each which are caused to engage on rotation of the main member and so decrease the effective length of the prop. The tube A has a sleeve H secured to its upper end and the tube and sleeve are provided with slots G adapted to receive a bar F secured to the underside of the head C when the tube is rotated, the bar normally lying across the slot. The head is provided with a skirt D and a stop-plate E secured by bolts J. In a modification, Fig, 3, the lower engaging element comprises a strip Q with turned-down ends to fit over the flanges of a section-bar R to which it is secured, and the top engaging element is formed of a metal bar with its ends turned under and overlapped, the elements being rotatably secured together by a bolt P. Specification 292,036 is referred to.
Patent GB-1494394-A (GB)
Title: Selective electroplating of gold onto composite surfaces
IPC: C25D5/38
Filed: 1975-02-19
Abstract: 1494394 Selective gold electro-plating WESTERN ELECTRIC CO Inc 19 Feb 1975 [19 Feb 1974(2)] 7091/75 Heading C7B [Also in Division H1] A composite surface comprising regions of Ti and regions of Pt, Pd and/or Au is selectively gold electro-plated on the latter by controlling the cathodic potential of the surface below that at which gold deposition occurs on the Ti, by which is meant less than 50000 Au nucleation sites per cm<SP>2</SP> on the Ti. Conventional baths are used, with optionally 20 ppb to 2 ppm of Pb present. Details of plating onset potentials for Pd, Pt and Au in relation to Ti are given, and control may be effected via a calomel electrode and potentiostat, although two-electrode systems are possible. The potential may be increased stepwise or continuously during plating. The Ti may be a layer on a conventional semi-conductor substrate, e.g. based on Si, and bear a printed circuit pattern of the Pt, Pd and/or Au. It may optionally be protected with a photo-resist during plating.
Patent GB-374151-A (GB)
Title: Improvements in or relating to engraved moulded articles
IPC: B44C1/22
Filed: 1931-03-06
Abstract: Engraved moulded articles are made by superposing a number of layers of plastic material of different colours impregnated with a synthetic resin binder, consolidating the pack by heat and pressure and then engraving the surface so that one or more of the differently-coloured layers is exposed to produce a decorative effect.  In a preferred construction the layers comprise sheets of fibrous material, but layers of loose impregnated cotton flock may be used or loose fibrous materials may be inserted between two sheets of material.  In a modification of the process, the upper layers are cut through to form a pattern before being assembled and consolidated, and loose fibrous material may be placed between two previously cut sheets and consolidated.
Patent GB-814692-A (GB)
Title: Saw chuck
Inventor: CAPLIN SAMUEL ROBERT
IPC: B24D5/12
Filed: 1957-03-04
Abstract: 814,692. Abrasive tools; sawing. CAPLIN ENGINEERING CO. Ltd. March 4, 1958 [March 4, 1957], No. 7118/57. Classes 60 and 145. An annular disc saw having teeth or abrasive particles on the inside of the annular is clamped at its outer periphery between a pair of rings 2, 3 which are secured by screws 7 over the rim 5 of a chuck body 4, the saw abutting against the round nose of the rim 5 in order to apply radial tension to the saw and the inner ring 3 abutting against the flange 9 of a ring 8 which is screw-threadedly adjustable on the chuck body in order to vary the tension applied to the saw. The ring 8 may be knurled or have tommy bar holes. The screwed ring replaces the removable packing rings shown in Specification 728,835.
Patent GB-1504530-A (GB)
Title: Method for the continuous production of rollable surface covering materials
IPC: B44C1/10
Filed: 1975-02-20
Abstract: 1504530 Laminates SPRELA-WERKE SPREMBERG VEB 20 Feb 1975 [20 Feb 1974] 7152/75 Addition to 1487758 Heading B5N In a method for the production of a rollable surface-coated material based on unsaturated polyester resins and initiator systems for cold setting according to parent Specification, the improvement comprises coating a paper or fabric web or webs uniformly on one side with a catalysed resin and moistening the other side or sides with a solution of an accelerator on an inert solvent and rolling the web(s) between separating means, hardening being effected on the roll by the resultant exothermic reaction. In the example, one face of a decorative paper web is coated with a solution of a polyester on styrene and the other face with an alcoholic solution of dimethylaniline prior to rolling with a parchment sheet.
Patent GB-217632-A (GB)
Title: Regulating apparatus for the carburetters of motor vehicles
IPC: F02M7/24
Filed: 1923-03-13
Abstract: 217,632. Evans, W. E., (Pallas-Apparate- Ges.). March 13, 1923. Spray carburettors.-In a carburettor of the kind provided with a fuel injector which, when a determined throttle opening is exceeded is supplied with a fuel emulsion, economy of fuel is effected by supplying additional air to a regulating chamber from which the injector draws the emulsion, this additional air being controlled by a device mounted on the vehicle in a position accessible to the driver. Fuel from a float chamber l, emulsified by air admitted through a pipe k, is supplied to a regulating chamber e arranged on an injector d opening into a suction pipe, a, a regulatable amount of air being admitted to the chamber e through a pipe o controlled by tapered or stepped needle valve q. A pipe g, leading from the chamber e to the suction pipe adjacent the throttle valve f, supplies mixture for slow-running. The chamber e may be formed as an annular chamber surrounding the injector d and connected to the interior thereof by radial holes.
Patent GB-290004-A (GB)
Title: Improvements in or relating to safety nuts
IPC: F16B39/286
Filed: 1927-03-16
Abstract: 290,004. Schmidt, G. March 16, 1927. Locking nuts.-A self-locking nut has cross-cuts a and the upper part of its bore is tapered, the threads being of the same depth throughout, the resilient upper part of the nut gripping the bolt when applied, and it is made without in any way deform ing it before application to a bolt. The nut and bolt threads are of trapezoidal section.
Patent GB-289018-A (GB)
Title: Improvements in piston pumps for corrosive liquids
IPC: F04B53/14
Filed: 1928-03-09
Abstract: 289,018. Ferraris, A. April 20, 1927, [Convention date]. Liquid-piston pumps; waste liquid, returning. -In a pump for corrosive liquids of the kind described in Specification 4482/14, an air chamber C is arranged between the piston ani cylinder head in which air is compressed during the upstroke, the compressed air serving to return leakage liquid above the piston through a valve E to the pump chamber. The air in the chamber C is replenished through an air valve D.
Patent GB-968342-A (GB)
Title: Improvements in internal combustion engine cylinder heads
Inventor: STANSFIELD FRANK MELVIN
IPC: F02B3/06
Filed: 1961-03-01
Abstract: 968,342. Cylinder heads. RUSTON & HORNSBY Ltd. Jan. 31, 1962 [March 1, 1961], No. 7399/61. Heading F1B. A cylinder head 11 is provided with a separate combustion chamber wall 14 of which a small central area only is rigidly secured to the head 11 by bolts 25, the periphery of the wall 14 being connected with non-rigid sealing means 33 which permit distortion of the plate; valve seat inserts 19, which are rigidly secured to the head 11, are a clearance fit in the wall 14 and sealed by seals 22. The centre of plate 14 is supported by a projection 26 surrounding a fuel injector recess 24 and in Fig. 1 the edge of plate 14 is supported by seals 16, 17, of a material such as copper which permits slight yielding. The seals are clamped between the lever 15 and a projection 18 on the cylinder head having apertures allowing coolant to flow from the head over plate 14 and around the edge thereof into the cylinder jacket. In Fig. 2 the edge of plate 14 rests freely against a projection 29 and is sealed to a rigid sealing ring 31 by a resilient stainless steel sealing ring 33. The plate may be of composite construction, e.g., with steel or cast iron with aluminium, sintered alumina or ceramic bonded thereto on the coolant side, or granular ceramic sandwiched between steel on the coolant side and "Nimovec" (Trade Mark) on the combustion space side. The plate 14 may be slightly dished and may have stress relieving grooves on the combustion space side and cooling fins' on the coolant side.
Patent GB-779598-A (GB)
Title: Improvements relating to resilient reel prongs for reapers
IPC: A01D80/00
Filed: 1956-03-09
Abstract: 779,598. Reaping machines. MASCHINENFABRIK FAHR AKT.-GES. March 9, 1956 [March 19, 1955], No. 7406/56. Class 6(3). The slats 2 of a reaping machine reel are provided with spring-tines 1 for raising fallen stalks, each tine having a spring-coil 4 seating in a recess 5 in the slat and having a part 3 which embraces the slat and is hooked into the spring-coil of the adjacent tine.
Patent GB-473595-A (GB)
Title: Indicating and controlling apparatus for hoppers
IPC: G01F23/22
Filed: 1936-03-12
Abstract: 473,595. Regulating feed to hoppers. KOCH, E. A. J. March 12, 1936, No. 7510. [Class 78 (i)] Apparatus for giving an indication and/or controlling the feed to a hopper when it is nearly empty or full comprises a spring- suspended float member suspended near the bottom of the hopper and influenced by the weight of material therein and a rotary paddle suspended near the top of the hopper and influenced by the increasing resistance offered to its rotation by the rising material. In the form shown the varying weight of superincumbent material on the plate p suspended in the hopper influences the spring t and thus by suitable mechanism indicates the condition of the hopper on a dial and in addition actuates the arm r when the hopper empties below a certain level to cause the pawl s to rotate the wheel l through an angle equal to one tooth so that the multi-sided prism m is rotated to close the switch n, o and start the feeding motor a to recharge the hopper. This motor also rotates a paddle g through the gearing b. c. As the hopper fills, the paddle encounters increasing resistance due to the added depth of material until it finally stops. This causes the wheel b to move relatively to the arm e fixed on the paddle shaft and the arm is raised from the serrations d on to the smooth higher part of the rim, thus operating the arm i and pawl k to re-open the switch n, o to stop the motor.
Patent GB-327262-A (GB)
Title: Improvements in or relating to laundry machines
IPC: D06F21/02
Filed: 1929-03-08
Abstract: 327,262. Burrows, C. March 8, 1929. Washing-machines with rotary receptacles.-Means for facilitating loading and unloading the receptacle of a rotary washing- machine comprise a pair of rollers 9 rotatably mounted in brackets 1 permanently, or removably secured to the stationary outer casing 6 at the lower edge of the door opening, one roller being within the casing and the other outside. The bracket may be bifurcated as shown, the legs 5 being long enough to grip the wall of the casing without additional securing means. Spring pressed means or clamps may however be used. When the fixture is permanent it may be hinged to its support so that it may be folded out of the way.
Patent GB-456259-A (GB)
Title: Apparatus for handling removable vehicle bodies
IPC: B60P1/64
Filed: 1936-03-13
Abstract: 456,259. Handling removable vehicle bodies. HINE, C. P., Ash Grove, Rowley Lane, Lepton, near Huddersfield. March 13, 1936, No. 7558. [Classes 78 (iii) and 78 (iv)] [See also Group XXXII] Apparatus for handling removable vehicle bodies or containers A, Figs. 1 and 2, comprises converging wheeled struts or legs H pivoted to the body and provided with mechanism whereby the lower ends of the pair of legs at each side of the body can be moved towards and away from each other to raise and lower the body. The legs H are pivoted on arms C which are pivoted at D on body brackets E and are connected together by links G. The movement of the arms C to the position shown is limited by chains F which can be adjusted to allow the legs H to be splayed outwardly as shown at the right of Fig. 10. The lower ends of the legs at each side of the body are connected together by right-and-left handed screws h<3> adjusted by a turn-buckle h<4>, so that the legs can be drawn towards each other from the position shown, in which the body A is resting on the lorry, sufficiently to raise the body clear of the lorry which can then be removed. Stops g, adjustably clamped on the arms C, engage under the links G and limit the raising movement of the body. The legs H can be drawn together by chain gear and a winch at one end of the body, or levers K, K<1> may be employed as shown in Fig. 7. The short arms of the levers, which are pivoted together at k, are connected by chains k3 and hooks k<4> to the legs H. When the levers are rotated through 180‹ to the position shown in Fig. 8, the hooks k<4> are drawn together and the body is raised. Pins k<2> on the levers engage under the chains and keep the body in the raised position. In the construction shown in Fig. 6 a container J may be used on a lorry to hold a body A and may be used separately to support a load when the lorry is being used for other work.